Patent application number | Description | Published |
20080219002 | LED LIGHTING SYSTEMS FOR PRODUCT DISPLAY CASES - An LED lamp for use in a display case includes a plurality of LEDs and an optic for redirecting the light to illuminate the contents of the display case. | 09-11-2008 |
20090021732 | LIGHT DISTRIBUTION MEASUREMENT SYSTEM - Optical test apparatuses and methods, and related subject matter, are disclosed herein. | 01-22-2009 |
20090021931 | LED LUMINAIRE FOR GENERATING SUBSTANTIALLY UNIFORM ILLUMINATION ON A TARGET PLANE - A luminaire includes a fixture housing, a plurality of LEDs disposed on a mounting surface in the fixture housing, and at least one reflector disposed in the housing. A center of each LED is positioned along a line and each LED faces towards an associated target surface that is vertically spaced from the luminaire. The at least one reflector includes first and second reflective surfaces. Each reflective surface is configured with respect to the line on which the LEDs are positioned so that the first reflective surface and the second reflective surface each reflect light from each of the LEDs in a substantially same direction that is offset from a vertical axis. | 01-22-2009 |
20090021933 | LED LUMINAIRE FOR GENERATING SUBSTANTIALLY UNIFORM ILLUMINATION ON A TARGET PLANE - A luminaire that can provide a beam pattern having a substantially uniform illuminance across a target plane includes a plurality of LEDs mounted on a support and at least one reflector fixed with respect to the support and cooperating with the plurality of LEDs. | 01-22-2009 |
20090147513 | BACKLIGHTING LED POWER DEVICES - A generally planar illumination, display, or backlighting device is disclosed, including a generally planar arrangement of side emitting light emitting diode (LED) devices generating side emitted illumination, and a generally planar arrangement of wavelength conversion elements arranged coplanar with the generally planar arrangement of side emitting light emitting diode (LED) devices. The wavelength conversion elements are interspersed amongst the side emitting LED devices and configured to wavelength convert the side emitted illumination generated by the side emitting LED devices. A display device using such a generally planar illumination device is also disclosed, in which a liquid crystal display (LCD) panel is backlit by the generally planar illumination device. | 06-11-2009 |
20090168395 | DIRECTIONAL LINEAR LIGHT SOURCE - An illumination apparatus includes a linear array of light emitting diode (LED) chips disposed on a support. A linear reflector assembly has a light coupling reflector portion and a one dimensional light collimation or focusing portion. The linear reflector assembly is secured to the support parallel with the linear array of LED chips. An encapsulant is disposed in the light coupling reflector portion of the linear reflector assembly and pots the LED chips. An elongate phosphor element is disposed over the encapsulant such that the light coupling reflector portion and the encapsulant enhance light coupling between the LED chips and the elongate phosphor element, and the one-dimensional light collimation or focusing portion one-dimensionally collimates or focuses light emitted by the combination of the LED chips and the elongate phosphor element. | 07-02-2009 |
20090262531 | LED LIGHT ENGINE - A light engine comprises a plurality of LEDs and a plurality of optical elements each cooperating with a respective LED. The optical elements broaden the off-axis angle from the respective LEDs to provide a more uniform illumination at a target plane. | 10-22-2009 |
20100079998 | DECORATIVE LIGHT FIXTURE INCLUDING COOLING SYSTEM - A decorative light fixture includes a light engine and a shroud. The light engine includes a heat sink and a light source in thermal communication with the heat sink. The shroud covers the light engine to define an air path between an air inlet and an exhaust. The air inlet is disposed vertically below the exhaust. The air path is shaped to direct air over the heat sink and to exit the shroud above the light engine. | 04-01-2010 |
20100123600 | LED SIGNAL LIGHT - A signal is described that includes one or more LEDs that emit light and a lens that receives and collimates the light from the LED array. A distribution optic receives light from the collimating lens and distributes the light in a predetermined pattern according to a specification. A light absorbing/reflecting element is located in an area proximate the one or more LEDs to minimize light received from an external source from exiting the signal. | 05-20-2010 |
20120026728 | LED ROADWAY LUMINAIRE - The luminaire comprises a housing including at least one optical module. The optical module has a plurality of light emitting diodes disposed within a reflector. The reflector includes opposed curved longitudinal walls and opposed curved end walls. | 02-02-2012 |
20120127709 | MODULAR LIGHT ENGINE FOR VARIABLE LIGHT PATTERN - A light fixture suitable for illuminating a remote surface. The fixture includes a post adapted to receive at least two substantially identical light engine modules. Each module includes a plurality of light emitting diodes. Each module includes an edge adapted for mounting to the post. | 05-24-2012 |
20120182711 | OMNIDIRECTIONAL LED BASED SOLID STATE LAMP - A lighting apparatus includes a bilaterally symmetrical light engine comprising first and second light emitting diode (LED) devices or planar LED device arrays facing opposite directions, and an envelope including phosphor spaced apart from and surrounding the bilaterally symmetrical light engine. The phosphor is effective to convert light emitted by the light engine to emission light. The bilaterally symmetrical light engine may be configured to emit light having a bilaterally symmetrical intensity distribution that is uniform except at emission angles within 10° of the symmetry plane of the bilaterally symmetrical light engine. Each of the first and second LED devices or planar LED device arrays may comprise at least one hemispherically emitting LED device including an LED chip and an encapsulant encapsulating the LED chip and shaped to refract light emitted by the LED chip into a uniform distribution over a hemispherical solid angle. | 07-19-2012 |
20130294058 | LED ROADWAY LUMINAIRE - The luminaire comprises a housing including at least one optical module. The optical module has a plurality of light emitting diodes disposed within a reflector. The reflector includes opposed curved longitudinal walls and opposed curved end walls. | 11-07-2013 |
20130294063 | LED ROADWAY LUMINAIRE - The luminaire comprises a housing including at least one optical module. The optical module has a plurality of light emitting diodes disposed within a reflector. The reflector includes opposed curved longitudinal walls and opposed curved end walls. | 11-07-2013 |
20150055349 | PACKED PILLOW OPTIC ARRAY - A pillow optic array comprising a plurality of first order pillow optic elements arranged as a two-dimensional grid with a plurality of interstice spaces between adjacent first order pillow optic elements. Each of a plurality of second order pillow optic elements, located within respective interstice spaces. Pillow optic elements of the second order have a predetermined dimension that is less than a predetermined dimension for pillow optic elements of the first order. A ratio of a cross-sectional width of pillow optic elements to a cross-sectional height of pillow optic element is the same proportion for each order of pillow optic elements in the pillow optic array, the cross-sectional width being located in a plane along the pillow optic array and the cross-sectional height located in a plane vertical to the pillow optic array. The higher order pillow optic elements touching, about tangentially, a lower order pillow optic element. | 02-26-2015 |
20150062925 | MULTI-PART REFLECTOR FOR OUTDOOR LIGHT DESIGN - Provided is a reflector for an optical source including an elongated piece configured for reflecting light from the optical source onto a first reflective lighting zone. The reflector also includes at least two end-pieces connectable to respective ends of the elongated piece, each being configured to reflect the light onto second and third reflective lighting zones, respectively. | 03-05-2015 |